Tire condition monitoring apparatus
First Claim
1. A tire condition monitoring apparatus for monitoring conditions of tires, the tires including left and right front tires provided at a front section of a vehicle and left and right rear tires provided at a rear section of the vehicle, the apparatus comprising:
- a plurality of transmitters, each of which is provided in one of the tires, wherein each transmitter includes a condition detecting device for detecting the condition of the corresponding tire, and an acceleration detecting device for detecting the direction of acceleration accompanying rotation of the corresponding tire, wherein each transmitter wirelessly transmits data containing data representing the condition of the tire detected by the condition detecting device and data representing the direction of the acceleration detected by the acceleration detecting device;
a first reception antenna provided in the vehicle to correspond to the left and right front tires, wherein the first reception antenna receives data from the transmitters of the left and right front tires;
a second reception antenna provided in the vehicle to correspond to the left and right rear tires, wherein the second reception antenna receives data from the transmitters of the left and right rear tires; and
a receiver that receives data from the transmitters, wherein, when receiving data from one of the transmitters, the receiver determines the position of the tire in which the transmitter that is the source of the data is provided based on the levels of received signals each sent from the first reception antenna and the second reception antenna.
1 Assignment
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Accused Products
Abstract
A transmitter is provided in each of tires to wirelessly transmit data representing the condition of the associated tire and data representing the direction of acceleration. A first reception antenna receives data from the transmitters provided in left and right front tires. A second reception antenna receives data from the transmitters provided in left and right rear tires. When receiving data from one of the transmitters, the receiver determines the position of the tire in which the transmitter that is the source of the data is provided based on the levels of received signals each sent from the first reception antenna and the second reception antenna.
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Citations
12 Claims
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1. A tire condition monitoring apparatus for monitoring conditions of tires, the tires including left and right front tires provided at a front section of a vehicle and left and right rear tires provided at a rear section of the vehicle, the apparatus comprising:
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a plurality of transmitters, each of which is provided in one of the tires, wherein each transmitter includes a condition detecting device for detecting the condition of the corresponding tire, and an acceleration detecting device for detecting the direction of acceleration accompanying rotation of the corresponding tire, wherein each transmitter wirelessly transmits data containing data representing the condition of the tire detected by the condition detecting device and data representing the direction of the acceleration detected by the acceleration detecting device; a first reception antenna provided in the vehicle to correspond to the left and right front tires, wherein the first reception antenna receives data from the transmitters of the left and right front tires; a second reception antenna provided in the vehicle to correspond to the left and right rear tires, wherein the second reception antenna receives data from the transmitters of the left and right rear tires; and a receiver that receives data from the transmitters, wherein, when receiving data from one of the transmitters, the receiver determines the position of the tire in which the transmitter that is the source of the data is provided based on the levels of received signals each sent from the first reception antenna and the second reception antenna. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A tire condition monitoring method for monitoring conditions of tires, the tires including left and right front tires provided at a front section of a vehicle and left and right rear tires provided at a rear section of the vehicle, the method comprising:
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a first step including a condition detecting step for detecting the condition of each tire, and an acceleration detecting step for detecting the direction of acceleration accompanying rotation of the corresponding tire, wherein data containing data representing the detected condition of the tire and data representing the detected direction of the acceleration is wirelessly transmitted; and a second step, wherein, when the data of the first step is received, the position of the tire is determined based on the level of a signal related to the received data. - View Dependent Claims (10, 11, 12)
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Specification